The Hoky® PowerRotor Sweepers have state of the art Rotorblade wipers replacing the traditional brush. This feature is a giant leap in mechanical sweepers. Some of the innovations found on the Hoky® size Hoky® PR2400 include the following: Naturally the Hoky® sweepers require no hoses, replacement bags or electrical connections. They are tough, durable and efficient. They are easy to empty, easy to clean and store in a small space. Parts are easily replaceable if ever needed. No other sweeper in the world can make these claims.